Ventilating Fan is an air conditioning appliance driven by an electric motor through the blades rotary drive airflow, indoor and outdoor air exchange. The function of the Ventilating Fan is to remove the polluted indoor air, adjust the temperature and humidity, etc. The Ventilating Fan is widely used in homes and public places. Our Ventilating Fan use new PP material, durable and difficult to aging; The Ventilating Fan’s pure copper motor with high quality reinforced silicon steel sheet and new enameled wire, higher magnetic permeability, less power attenuation, more power, more stability, longer life, more energy-saving. The Ventilating Fan’s motor temp rise less than 65k when full loading, with over heat protection, noise less than 43db,more safety; The Ventilating Fan’s motor rotation direction can be changeable to clockwise or anticlockwise per customer's request; Our Ventilating Fan have more than 10years long life design, more safety.